Page 354 - CITS - Electronic Mechanic - TT - 2024

ELECTRONICS MECHANIC - CITS

2 AC Servo Motors
These motors are designed to work with AC power and are often used in industrial automation and robotics due
to their high torque and speed capabilities.

3 Brushed Servo Motors
These motors use brushes and a commutator to transfer electrical power to the rotor, providing simplicity and
ease of control.
4 Brushless Servo Motors

These motors eliminate the need for brushes and commutators, offering improved efficiency, reliability, and
maintenance-free operation.
5 Linear Servo Motors

Instead of rotational motion, linear servo motors produce linear motion directly, making them suitable for
applications such as CNC machines and high-precision positioning systems.
6 Micro Servo Motors

These are small-sized servo motors commonly used in RC (remote control) models, drones, and small robotic
applications.
Industrial Servo Motors
These motors are designed for heavy-duty industrial applications, offering high torque and precision control for
tasks such as CNC machining, printing, and packaging.
Hobby Servo Motors
These are low-cost, small-sized servo motors commonly used in hobbyist projects, remote-controlled vehicles,
and model airplanes.

AC & DC Brushless Servo Motor & Permanent Magnet

Servo Motor Construction & Application

AC and DC brushless servo motors, as well as permanent magnet servo motors, have distinct constructions and
applications:
1 AC Brushless Servo Motors
Construction: AC brushless servo motors consist of a stator with windings and a rotor with permanent magnets.
They typically use a three-phase system.
Applications: They are commonly used in applications requiring precise control and high torque, such as robotics,
CNC machines, and industrial automation.
2 DC Brushless Servo Motors
Construction: DC brushless servo motors also have a stator with windings and a rotor with permanent magnets.
However, they are powered by DC voltage and utilize electronic commutation rather than brushes for operation.

Applications: DC brushless servo motors are used in similar applications to AC brushless servo motors but are
often preferred in battery-powered devices, drones, and smaller-scale automation systems due to their efficient
and compact design.
3 Permanent Magnet Servo Motors
Construction: Permanent magnet servo motors, whether AC or DC, have a rotor with permanent magnets and a
stator with windings. These motors can be brushless or brushed, depending on the design.
Applications: Permanent magnet servo motors find applications in a wide range of industries, including
aerospace, automotive, robotics, and medical devices. They are favored for their high power density,

339

CITS : E & H - Electronics Mechanic - Lesson 237 - 241